Drupal 是由很小的核心和几千个实现不同功能的模块组成，无论要实现什么功能，几乎都可以通过找到模块来实现。但是一个中等的系统会需要几十个或者上百个模

In www.example.com/admin/structure/taxonomy choose Add Vocabulary. Name- avoid any problematic characters like ampersands or apostrophes as they may not display properly in all instances, (though in the authors experience this is a cosmetic issue only). Description- Optional, the description is for administrators and editors, not a help guide for users. Your new vocabulary is at www.example.com/admin/structure/taxonomy Default display of vocabularies is alphabetical. You can drag them into a different order. Add terms to a vocabulary Name- the term itself as will appear in the site.